Nuclear reactor pressure vessel top cover simulation training device

Abstract

This utility model discloses a simulation training device for the top cover of a nuclear reactor pressure vessel, comprising a spherical top cover with symmetrical bases on both sides at the bottom. A training workbench is located on the top of the spherical top cover, and several control rods connected to the top cover are mounted on the workbench. A surrounding guardrail is provided on the workbench, with openings on its sides, and ladders connecting to the workbench at these openings. This device allows maintenance personnel to undergo simulated training before entering the nuclear reactor pressure vessel, ensuring rapid and proficient maintenance after actual entry into the vessel.

Description

Technical Field

[0001] This invention relates to the field of nuclear power plant maintenance, and more specifically to a simulation training device for the top cover of a nuclear reactor pressure vessel. Background Technology

[0002] A nuclear reactor pressure vessel is a sealed container that houses the nuclear reactor and withstands its enormous operating pressure; it is also called the reactor pressure shell. Maintenance of nuclear reactor pressure vessels is subject to very strict procedures, and maintenance personnel cannot easily enter the vessel. Once inside, they must quickly and skillfully complete the work and evacuate. This presents a challenge for training maintenance personnel, as on-site training could pose a significant risk of injury. Therefore, how to provide simulated training to maintenance personnel before they enter the nuclear reactor pressure vessel to ensure their rapid and proficient maintenance skills upon actual entry has become a pressing issue. Summary of the Invention

[0003] In order to solve the technical problems existing in the prior art, the purpose of this application is to provide a nuclear reactor pressure vessel top cover simulation training device, which enables maintenance personnel to undergo simulation training before entering the nuclear reactor pressure vessel, so as to ensure rapid and proficient maintenance after actually entering the nuclear reactor pressure vessel.

[0004] To solve the aforementioned existing technical problems, the purpose of this application is achieved by the following technical solution: a nuclear reactor pressure vessel top cover simulation training device, including a spherical top cover, symmetrical bases on both sides of the bottom of the spherical top cover, a training workbench on the top of the spherical top cover, a plurality of control rods connected to the spherical top cover on the training workbench, a guardrail surrounding the training workbench, an opening on the side of the guardrail, and a ladder connected to the training workbench at the opening.

[0005] Preferably, each side of the spherical top cover has two bases, and a biological shielding door is provided at the bottom of the spherical top cover between the two bases.

[0006] Preferably, the bottom side of the spherical top cover is provided with a connecting frame, the base is provided with a support shaft, and the connecting frame is provided with a plurality of connecting holes that connect to the support shaft.

[0007] Preferably, the connecting holes are evenly arranged in a ring around the connecting frame.

[0008] Preferably, the spherical top cover has a hollow structure.

[0009] Preferably, the inner side of the spherical top cover is provided with several evenly arranged transverse ribs and longitudinal ribs, which are arranged in a cross pattern.

[0010] Preferably, the base includes a base plate, two vertical plates disposed on the base plate, and a top plate disposed on the top of the vertical plates. The top plate is provided with a support block, and the support block is provided with mounting holes for mounting a support shaft.

[0011] Preferably, the side of the vertical plate is provided with a support plate that is connected to the bottom plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The nuclear reactor pressure vessel top cover simulation training device using the above technical solution enables maintenance personnel to undergo simulation training before entering the nuclear reactor pressure vessel, ensuring rapid and proficient maintenance after actual entry into the nuclear reactor pressure vessel. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is the right view of the present invention;

[0016] Figure 3 This is a schematic diagram of the bottom structure of this utility model;

[0017] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0018] Figure 5 This is a schematic diagram of the base structure in this utility model;

[0019] In the diagram: 1. Base; 11. Base plate; 12. Vertical plate; 13. Top plate; 14. Support plate; 15. Support block; 16. Mounting hole; 2. Sphere top cover; 21. Horizontal rib plate; 22. Vertical rib plate; 3. Training workbench; 4. Control rod; 5. Guardrail; 6. Ladder; 7. Biological shielding door; 8. Support shaft; 9. Connecting frame; 10. Connecting hole. Detailed Implementation

[0020] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0021] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0022] like Figures 1 to 3 As shown, a nuclear reactor pressure vessel top cover simulation training device includes a spherical top cover 2. Symmetrical bases 1 are provided on the bottom of both sides of the spherical top cover 2. A training workbench 3 is provided on the top of the spherical top cover 2. Several control rods 4 connected to the spherical top cover 2 are provided on the training workbench 3. A guardrail 5 is provided around the training workbench 3. The side of the guardrail 5 is open, and a ladder 6 connected to the training workbench 3 is provided at the opening.

[0023] In actual work, maintenance personnel undergo simulated training on the nuclear reactor pressure vessel top cover simulation training device. They can climb up the training workbench 3 via ladder 6 to train on the maintenance and replacement of control rods 4; or they can directly enter the interior of the spherical top cover 2 to train on maintenance from the inside. This allows maintenance personnel to undergo simulated training before entering the nuclear reactor pressure vessel, ensuring rapid and proficient maintenance after actually entering the nuclear reactor pressure vessel.

[0024] The spherical top cover 2 has two bases 1 on each side, and a biological shielding door 7 is provided at the bottom of the spherical top cover 2 between the two bases 1. The use of two bases 1 on each side of the spherical top cover 2 can provide stable support for the spherical top cover 2 and increase the overall stability of the simulation training device; the biological shielding door 7 also serves the purpose of simulation training.

[0025] The spherical top cover 2 has a connecting frame 9 on its side bottom, and the base 1 has a support shaft 8. The connecting frame 9 has several connecting holes 10 that connect to the support shaft 8. Adjusting the position of the base 1 and connecting the support shaft 8 to the connecting holes 10 facilitates the adjustment and installation of the base 1.

[0026] The connecting holes 10 are evenly arranged around the connecting frame 9. When adjusting the position of the base 1, both bases 1 are adjusted to move outward or inward simultaneously to ensure the stability of the support.

[0027] like Figure 4 As shown, the spherical top cover 2 adopts a hollow structure. This results in a lighter weight and reduced manufacturing costs. The spherical top cover 2 is cut off on both sides, partially removing the spherical structure, further reducing manufacturing costs and the area it occupies.

[0028] The inner side of the spherical top cover 2 is provided with several evenly arranged transverse ribs 21 and longitudinal ribs 22, which are arranged in a crisscross pattern. The transverse ribs 21 and longitudinal ribs 22 provide support for the entire spherical top cover 2, increasing the working strength of the spherical top cover 2.

[0029] like Figure 5As shown, the base 1 includes a base plate 11, two vertical plates 12 disposed on the base plate 11, and a top plate 13 disposed on the top of the vertical plates 12. The top plate 13 is provided with a support block 15, and the support block 15 is provided with a mounting hole 16 for mounting a support shaft 8. The structure has strong stability and is easy to manufacture.

[0030] The vertical plate 12 has a support plate 14 on its side that is connected to the base plate 11. This supports the side of the vertical plate 12 and prevents it from bending.

[0031] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A nuclear reactor pressure vessel top cover simulation training device, comprising a spherical top cover (2), characterized in that: The bottom of the two sides of the spherical top cover (2) is provided with symmetrical bases (1), and the top of the spherical top cover (2) is provided with a training workbench (3). The training workbench (3) is provided with several control rods (4) connected to the spherical top cover (2). The training workbench (3) is provided with a guardrail (5) around its perimeter. The guardrail (5) has an opening on its side, and a ladder (6) connected to the training workbench (3) is provided at the opening.

2. The nuclear reactor pressure vessel top cover simulation training device according to claim 1, characterized in that: The spherical top cover (2) has two bases (1) on each side, and a biological shielding door (7) is provided at the bottom of the spherical top cover (2) between the two bases (1).

3. The nuclear reactor pressure vessel top cover simulation training device according to claim 2, characterized in that: The bottom side of the spherical top cover (2) is provided with a connecting frame (9), the base (1) is provided with a support shaft (8), and the connecting frame (9) is provided with a plurality of connecting holes (10) that are connected to the support shaft (8).

4. The nuclear reactor pressure vessel top cover simulation training device according to claim 3, characterized in that: The connecting holes (10) are evenly arranged around the connecting frame (9).

5. The nuclear reactor pressure vessel top cover simulation training device according to claim 1, characterized in that: The spherical top cover (2) has a hollow structure.

6. The nuclear reactor pressure vessel top cover simulation training device according to claim 5, characterized in that: The inner side of the spherical top cover (2) is provided with several evenly arranged transverse ribs (21) and longitudinal ribs (22), which are arranged in a cross pattern.

7. The nuclear reactor pressure vessel top cover simulation training device according to claim 3, characterized in that: The base (1) includes a base plate (11), two vertical plates (12) on the base plate (11), and a top plate (13) on the top of the vertical plates (12). The top plate (13) is provided with a support block (15), and the support block (15) is provided with a mounting hole (16) for mounting a support shaft (8).

8. The nuclear reactor pressure vessel top cover simulation training device according to claim 7, characterized in that: The vertical plate (12) is provided with a support plate (14) on its side that is connected to the bottom plate (11).

Images